Analysis

  • max time kernel
    74s
  • max time network
    82s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    31/03/2021, 16:36

General

  • Target
    document-278691849.xlsm
  • Size 106KB
  • Sample210331-p7scm64bp2
  • SHA256 04e6320dce594194eeea6da52f8cf8227eb3385dbe001778f0b58587254bb2ed
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Language
  • xlm4.0

Source
URLs
  • xlm40.dropper

    https://ieclb.com.br/ds/3103.gif

  • xlm40.dropper

    https://maharaniworld.com/ds/3103.gif

  • xlm40.dropper

    https://aycconsultoriaempresarial.com/ds/3103.gif

  • xlm40.dropper

    https://sgb.ac.ke/ds/3103.gif

  • xlm40.dropper

    https://hashmati.com/ds/3103.gif

Signatures

  • Process spawned unexpected child process 5 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 15 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\document-278691849.xlsm
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1832
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\iekdhfe.dsk,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:344
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\iekdhfe.dsk1,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:2044
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\iekdhfe.dsk2,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:928
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\iekdhfe.dsk3,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:1388
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\iekdhfe.dsk4,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:812

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/344-7-0x0000000076191000-0x0000000076193000-memory.dmp

        memory/1572-5-0x000007FEF6670000-0x000007FEF68EA000-memory.dmp

        memory/1832-2-0x000000002F2E1000-0x000000002F2E4000-memory.dmp

        memory/1832-3-0x0000000071811000-0x0000000071813000-memory.dmp

        memory/1832-4-0x000000005FFF0000-0x0000000060000000-memory.dmp